Transition Metal Atom (i.e., Fe, Co, Ni) Patents (Class 524/435)
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Patent number: 6291568Abstract: A polymer composition is elastically deformable from a quiescent state. The composition includes at least one electrically conductive filler dispersed within and encapsulated by a non-conductive elastomer, the nature and concentration of the filler being such that the electrical resistivity of the composition is variable in response to distortion forces down to a value substantially equal to that of the conductor bridges of the filler. The composition further includes a modifier which, on release of the distortion forces, accelerates the elastic return of the composition to its quiescent state.Type: GrantFiled: July 22, 1999Date of Patent: September 18, 2001Assignee: Peratech Limited of a Company of Great Britain and Northern IrelandInventor: David Lussey
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Patent number: 6288154Abstract: Abrasive jet stream polishing, wherein an abrasive is suspended in a flowable jet medium and projected at high velocity and pressure at a workpiece is provide, where the jet is projected at the surface to be polished at an oblique angle. The method is substantially improved by forming the medium of a polymer having reformable sacrificial chemical bonds which are preferentially broken under high shear conditions. Projecting the medium and suspended abrasive breaks the reformable sacrificial chemical bonds while polishing. The chemical bonds will reform, permitting recycling of the medium and abrasive for reuse in the method. The jet is effective at relatively low pressures of about 5 to about 80 MPa.Type: GrantFiled: October 18, 1999Date of Patent: September 11, 2001Assignee: Extrude Hone CorporationInventor: Lawrence J. Rhoades
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Patent number: 6284363Abstract: A silicone gel sheet is heat-molded from a silicone gel composition comprising metal oxide magnetic particles and a thermoconductive filler. The sheet has a high electromagnetic wave absorbing property at a frequency ranging from 500 to 800 MHz. The hardness of the composition after hardening treatment is set in the range of 10-95 when measured with an ASKER F-type hardness meter. The metal oxide magnetic particles used here can be either Mn—Zn ferrite or Ni—Zn ferrite whose average particle diameter is 1-50 &mgr;m. For the thermoconductive filler, a metal oxide, aluminum nitride, boron nitride, silicon nitride, or silicon carbide can be used. In the silicone gel molded sheet, an electroconductive mesh is embedded in one surface layer of the silicone gel layers while the other surface is provided with adhesiveness.Type: GrantFiled: March 12, 1999Date of Patent: September 4, 2001Assignee: Fuji Polymer Industries Co., Ltd.Inventors: Takako Maeda, Mitsuhiro Fujimoto
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Patent number: 6281284Abstract: An organopolysiloxane composition comprising (A) an organopolysiloxane, (B) a silane compound having at least two hydrolyzable groups or a partial hydrolyzate thereof, and (C) an antibacterial agent based on a ferrous compound, typically FeSO4 is antibacterial, mildew resistant, resistant to heat, resistant to weather, and safe.Type: GrantFiled: March 10, 2000Date of Patent: August 28, 2001Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takafumi Sakamoto, Tokuo Sato
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Publication number: 20010009936Abstract: A method of manufacturing an insulating film-forming material comprising a curable composition comprisING (A) an inorganic polymer compound or an organic polymer compound and (B) an organic solvent, which comprises treating the curable composition with a zeta potential-producing filter material. Because the curable composition has a very small content of alkali metals and heavy metals, the composition is suitably used for the manufacture of materials for forming insulating films which have a wide variety of applications in the electronic field.Type: ApplicationFiled: January 17, 2001Publication date: July 26, 2001Applicant: JSR CorporationInventors: Hidenori Suzuki, Katsuyuki Kakinoki, Yoshihisa Nakase, Michinori Nishikawa, Takashi Okada, Kinji Yamada
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Patent number: 6232386Abstract: Oxyhalopolymer composites which include an oxyhalopolymer having free volume therein and an inorganic or organic material disposed in the free volume of the oxyhalopolymer are disclosed. Also disclosed is a surface-oxyhalogenated non-halopolymer composite. The composite includes a surface-oxyhalogenated non-halopolymer having free volume therein and an inorganic or organic material disposed in the free volume of the surface-oxyhalogenated non-halopolymer. Methods for making and using these composites are also described.Type: GrantFiled: December 23, 1997Date of Patent: May 15, 2001Assignee: Integument Technologies, Inc.Inventors: Terrence G. Vargo, Timothy S. Koloski
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Patent number: 6228933Abstract: Energy dissipating soft polyurethane elastomeric compositions containing any compound that may be magnetically or electro-magnetically aligned to define useful permanent magnetic fields and which may also contain, where desirable, a light-weight filler, are formed by the reaction of an urethane forming polyol containing at least four urethane forming reactive sites and capable of forming stable complexes through free-radicle urethane forming reactive sites, an elasticizing polyol selected from the group comprising diols and triols and a diisocyanate in less than stoiciometric equivalents and resulting in compositions having densities from about 1.2 to 3.8 grams per cc, a compression set of less than 5%, a recovery time of between 10 to about 200 milliseconds and surface hardness of less than about 70 when measured on the Shore 00 scale.Type: GrantFiled: June 8, 1999Date of Patent: May 8, 2001Assignee: Remington Products CompanyInventor: Maurice Hiles
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Patent number: 6228904Abstract: A nanocomposite structure comprising a nanostructured filler or carrier intimately mixed with a matrix, and methods of making such a structure. The nanostructured filler has a domain size sufficiently small to alter an electrical, magnetic, optical, electrochemical, chemical, thermal, biomedical, or tribological property of either filler or composite by at least 20%.Type: GrantFiled: May 22, 1998Date of Patent: May 8, 2001Assignee: Nanomaterials Research CorporationInventors: Tapesh Yadav, Clayton Kostelecky, Evan Franke, Bijan Miremadi, Ming Au
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Patent number: 6211285Abstract: A polyisocyanate-based polymer having dispersed therein a metal salt, obtained by reacting an organic polyisocyanate with an aqueous composition of a metal salt. The polymer comprises the metal salt in an amount of from at least 10 weight percent based on total weight of the dry salt with the weight of the polyisocyanate-based polymer including salt therein. The polymer on calcination provides a metal-containing powder having an average particle size of 1 micrometer or less. Such metal-containing powders are of value in the preparation of industrial catalysts, ceramics, electronic components, or as fillers in plastics, paints, or cosmetics.Type: GrantFiled: July 30, 1999Date of Patent: April 3, 2001Assignee: The Dow Chemical CompanyInventors: Henri J. M. Grünbauer, Jacobus A. F. Broos, Kevin Pickin
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Patent number: 6203893Abstract: A mixture comprising: a composition containing polypropylene possessing specific properties, 45˜70 parts by weight; a polyolefin resin possessing specific properties, 5˜20 parts by weight; an inorganic filler selected from precipitated calcium carbonate, hydrated silicic acid, and hydrated calcium silicate, 5˜30 parts by weight; and an inorganic filler selected from talc, mica, and potassium titanate, 5˜30 parts by weight; is superior in scratch resistance, moldability, and balance of rigidity and impact resistance. In addition, a laminate having a layer of this mixture has superior gloss. This mixture and the laminate are useful in automobile parts, electric and electronic parts, packaging materials, etc.Type: GrantFiled: September 30, 1998Date of Patent: March 20, 2001Assignee: Showa Denko K.K.Inventors: Yasuhiro Nohara, Kazuyuki Watanabe
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Patent number: 6184408Abstract: A method for the preparation of hydrophobic precipitated silica. The method comprises contacting an aqueous suspension of a hydrophilic precipitated silica with (1) a catalytic amount of an acid and (2) an organosilicon compound in the presence of (3) a water-miscible organic solvent in an amount sufficient to facilitate reaction of the hydrophilic precipitated silica with the organosilicon compound to form a hydrophobic precipitated silica.Type: GrantFiled: April 28, 1999Date of Patent: February 6, 2001Assignee: Dow Corning CorporationInventors: Gary Thomas Burns, Qin Deng, James Richard Hahn, Thomas G. Krivak, Timothy A. Okel, Clifford Carlton Reese
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Patent number: 6160044Abstract: The present invention provides a composition comprising a polymer or a compound having at least one 5-membered ring dithiocarbonate group represented by general formula (I): ##STR1## (wherein R.sup.1, R.sup.2, and R.sup.3 are the same or different and each of which represents hydrogen or lower alkyl), a nucleophile, and a metal compound.Type: GrantFiled: September 30, 1999Date of Patent: December 12, 2000Assignee: Kyowa Yuka Co., Ltd.Inventors: Shinichiro Jimbo, Shoshiro Matsushita, Ikuo Shimizu, Iwao Hotta, Masanori Ikuta, Izumi Itani
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Patent number: 6153079Abstract: A bath of pH higher than 4 containing more than 1 mole/liter of Zn.sup.++ ions and at least one polyethylene glycol polymer of the general formula R.sup.1 --O(CH.sub.2 --CH.sub.2 --O).sub.n --R.sup.2, in which n.ltoreq.13 and in which the concentration of polymer in the bath is adapted to incorporate in the coat an organic compound having a content by weight greater than 0.1%, expressed as weight of carbon per unit weight of the coat. The bath is adapted to high current densities, and the coat applied on the steel sheet imparts both a leveling effect and an improvement of corrosion resistance.Type: GrantFiled: June 26, 1998Date of Patent: November 28, 2000Assignee: SollacInventors: Genevieve Klam, Isabelle Marolleau, Jacques Petitjean
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Patent number: 6150447Abstract: A process for the preparation of a fire-retardant material which comprises a particulate inorganic filler (other than a tin compound) coated with a layer of divalent metal hydroxystannate or a divalent metal stannate, which process comprises the steps of: (i) forming a slurry of the particulate inorganic filler in an aqueous solution of an alkali hydroxystannate, also containing a divalent metal oxide dissolved therein; (ii) reacting the slurry from step (i) with a hydrolysing agent, or a water-soluble source of a divalent metal, to form a layer of a divalent metal hydroxystannate on the surface of the filler, and (iii) optionally, heating the filler coat with hydroxystannate in step (ii) in order to convert it to the corresponding divalent metal stannate.Type: GrantFiled: March 19, 1998Date of Patent: November 21, 2000Assignee: ITRI LimitedInventors: Paul Andrew Cusack, Bhagwati Patel, Manider Singh Heer, Rupert Guy Baggaley
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Patent number: 6150456Abstract: A flexible, high dielectric constant polyimide film composed of either a single layer of an adhesive thermoplastic polyimide film or a multilayer polyimide film having adhesive thermoplastic polyimide film layers bonded to one or both sides of the film and having dispersed in at least one of the polyimide layers from 4 to 85 weight % of a ferroelectric ceramic filler, such as barium titante or polyimide coated barium titanate, and having a dielectric constant of from 4 to 60. The high dielectric constant polyimide film can be used in electronic circuitry and electronic components such as multilayer printed circuits, flexible circuits, semiconductor packaging and buried film capacitors.Type: GrantFiled: May 14, 1999Date of Patent: November 21, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Yueh-Ling Lee, Gary Min
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Patent number: 6140404Abstract: The present invention provides a non-linear optical material having an excellent non-linear optical effect which is insusceptible to modification of a cuprous halide incorporated therein. The present invention also provides a process which enables the preparation of such a non-linear optical material at a low temperature by means of a simple apparatus. The non-linear optical material of the present invention exhibits a nonlinear response to incident light and comprises a particulate cuprous halide dispersed in a matrix, said particulate cuprous halide having been separated out with the reaction of a functional group contained in a matrix-forming substance having a functional group, wherein said matrix contains a compound for inhibiting the modification of said cuprous halide.Type: GrantFiled: December 10, 1996Date of Patent: October 31, 2000Assignee: Fuji Xerox Co., Ltd.Inventors: Yoshiyuki Ono, Katsuhiro Sato
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Patent number: 6133361Abstract: An oxygen-absorbing composition for a low-humidity environment includes a reduced metal and an accelerator having at least one of iodide and bromide. The accelerator may have at least one of a metallic iodide salt and a metallic bromide salt. The reduced metal and the accelerator may be included in a dry state and the oxygen-absorbing composition may take the form of particles. The oxygen-absorbing composition may be a resin composition made by kneading an oxygen absorber with a thermoplastic resin.Type: GrantFiled: March 13, 1998Date of Patent: October 17, 2000Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Hidetoshi Hatakeyama, Haruaki Eto, Takashi Nakata, Hideyuki Takahashi
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Patent number: 6126730Abstract: A coating composition comprising 38%-66% of a binder resin (including a curing agent), 0.2%-6% of an organic lubricant, 20%-50% of an iron phosphide-based electrically conductive pigment, and 3%-25% of one or more other inorganic pigments including anticorrosive pigments (the total content of these pigments being between 31% and 56%), wherein the content of the binder resin (including a curing agent) (R) and that of the organic lubricant (W) satisfy the following inequality:-0.4R+16.2.ltoreq.W.ltoreq.-0.4R+30.4, andwherein the coating composition further comprises a curing catalyst in an amount of from 0.7% to 10% based on the solids of the binder resin (including a curing agent). The coating composition can be applied to a plated metal sheet having a zinc- or aluminum-based plated coating after the plated metal sheet has been subjected to chemical conversion treatment such as chromating treatment, to form a resinous coating thereon having a thickness of 2-9 .mu.Type: GrantFiled: June 26, 1998Date of Patent: October 3, 2000Assignee: Sumitomo Metal Industries, Ltd.Inventors: Tsutomu Yoshida, Kenji Ikishima, Kiyoyuki Fukui, Masamitsu Matsumoto, Yozo Hirose, Tadashi Sakane, Toshiharu Oshiba
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Patent number: 6114431Abstract: A plastic composition having incorporated copper is provided in accordance with the invention. The plastic material can be processed at low temperatures, readily absorbs water, and has good film forming properties. In particular, the plastic material is a polycaprolactone and the copper is derived from copper hydroxide and/or copper carbonate. The plastic material is useful for forming plant containers that promote a branched root structure.Type: GrantFiled: November 7, 1997Date of Patent: September 5, 2000Assignees: Griffin Corp., ICC IndustriesInventors: Victor Lee, Ed Wykoff, Mark A. Crawford
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Patent number: 6063303Abstract: The present invention relates to a magnetic powder that contains resin-coated magnetic particles. The resin-coated magnetic particles include magnetic particles A and B that are formed in non-spherical shapes, with the magnetic particles A and B coated with a resin C. The resin-coated magnetic particles make it possible to increase the filling quantity of the magnetic particles A and B when the magnetic powder is employed to constitute a magnetic molded article, to ultimately improve the electromagnetic characteristics of the magnetic molded article.Type: GrantFiled: February 22, 1999Date of Patent: May 16, 2000Assignee: TDK CorporationInventor: Hitoshi Ohtaki
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Patent number: 6048920Abstract: A magnetic nanocomposite composition comprising from about 0.001 to about 60 weight percent of nanocrystalline particles of Fe.sub.3 O.sub.4, and from about 40 to about 99.999 weight percent of a resin.Type: GrantFiled: August 15, 1994Date of Patent: April 11, 2000Assignee: Xerox CorporationInventors: Ronald F. Ziolo, Kathleen M. Braungart
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Patent number: 6042946Abstract: A charge roller made from a mixture of urethane, polybutadiene, a polyether diol, ferric chloride, and antimony doped tin oxide with or without carbon black. The roller has a very high outer surface electrical resistance from baking the roller to oxidize the polybutadiene. The charge roller is achieved at low production cost and functions well even with charging by a DC potential with an AC overlay.Type: GrantFiled: July 29, 1998Date of Patent: March 28, 2000Assignee: Lexmark International, Inc.Inventors: Johnny Dale Massie, II, Angela Rachele Perruzza, Edward Wayne Weidert
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Patent number: 6030564Abstract: The present invention provides a method of preparing semi-wet pressed green bodies having improved wet strength. The wet strength of the semi-wet pressed green bodies is increased by the addition of at least one polymeric binder having a molecular weight greater than 50,000 comprising, as polymerized units, at least 10 percent of one or more monoethylenically unsaturated acids, salts, or anhydrides, and further comprising at least one hydrophobe per polymeric chain on average. The present invention further provides semi-wet pressed green bodies, having improved wet strength, made from the above method.In one embodiment, the polymeric binder increases the wet strength of ceramic green bodies. In another embodiment, the polymeric binder increases the wet strength of metallurgic green bodies. In another embodiment, the polymeric binder increases the wet strength of cermet green bodies.Type: GrantFiled: May 18, 1998Date of Patent: February 29, 2000Assignee: Rohm and Haas CompanyInventor: David William Whitman
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Patent number: 6028134Abstract: A thermoplastic resin composition having laser marking ability, which comprises a thermoplastic resin and at least two kinds of metal oxides, the content of total metal oxides being 0.001 to 10 parts by weight per 100 parts by weight of said thermoplastic resin; and a keyboard having keys composed of the above composition.Type: GrantFiled: December 21, 1998Date of Patent: February 22, 2000Assignee: Teijin LimitedInventors: En Lai Zhang, Kiyoshi Sugie, Mioko Suzuki, Yoshinari Ogawa
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Patent number: 6025456Abstract: Hydroxyl-containing polyurethanes I are composed essentially ofa) a diisocyanate of 6 to 30 carbon atoms (component II),b) a component III comprising.alpha.) an aliphatic diol of 2 to 20 carbon atoms or.beta.) an aromatic-aliphatic or aromatic-cycloaliphatic diol of 8 to 30 carbon atoms having nonphenolic hydroxyl groups as hydroxyl groups of the diol andc) a polyhydric alcohol having at least 3 hydroxyl groups, 3 to 18 carbon atoms and nonphenolic hydroxyl groups as hydroxyl groups of the alcohol (component IV),the amounts of components II to IV being such that the total number of nonphenolic hydroxyl groups is from 1.1 to 5.0 per isocyanate group of II.The polyurethanes can be used as binders or binder components for pigment-containing coatings, in particular for the production of magnetic recording materials.Type: GrantFiled: March 9, 1998Date of Patent: February 15, 2000Assignee: EMTEC Magnetics GmbHInventors: Thomas Wunsch, Ria Kress, Werner Loch, August Lehner, Albert Kohl, Norbert Schneider, Uwe Burkhardt
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Patent number: 6022920Abstract: Disclosed herein is a thermoplastic polymer composition comprising a blend of a thermoplastic polymer admixed with from about 5 to 50 ppm black iron oxide particles, based on the amount of said thermoplastic polymer. The black iron oxide is admixed with the polymer in order to speed up the process of reheating parisons formed from the polymer during bottle manufacturing. The composition has the beneficial combination of a large percent reheat rate improvement (RIV) with only a small decrease in transparency (.DELTA.L*). The ratio of RIV/.DELTA.L* is significantly better than carbon black--polymer blends having similar RIV.Type: GrantFiled: January 15, 1999Date of Patent: February 8, 2000Assignee: Eastman Chemical CompanyInventors: Brian Edison Maxwell, Philip Edward Gibson
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Patent number: 6013238Abstract: This invention aims to provide titanate whiskers which are excellent in heat resistance, chemical resistance and reinforcing effect and are low in coefficient of thermal conductivity.The titanate whiskers of the invention are those represented by the formulaA.sup.I.sub.v A.sup.II.sub.w M.sup.II.sub.x M.sup.III.sub.y Ti.sub.8-z O.sub.16wherein A.sup.I is at least one member selected from alkali metals, A.sup.II is Ba, M.sup.II is at least one member selected from the group consisting of Mg, Co, Ni, Zn, Cu and Mn, M.sup.III is at least one member selected from the group consisting of Al, Sc, Cr, Fe and Ga, and v, w, x, y and z are real numbers which fulfill 0.5.ltoreq.2x+y.ltoreq.2.5, 2x+y=v+2w, and z=x+y.Type: GrantFiled: July 2, 1998Date of Patent: January 11, 2000Assignees: Otsuka Kagaku Kabushiki Kaisha, Tomita Pharmaceutical Co., Ltd.Inventors: Hiroki Murata, Masayoshi Suzue, Akiyoshi Kawaguchi, Fauzi Faustinus, Toshihiro Kamewa, Tomohide Koizumi
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Patent number: 6008282Abstract: Styrene/acrylonitrile (SAN) resin compositions are provided having both improved room temperature impact properties as well as good weatherability. The compositions comprise a mixture of SAN resin, an elastomeric halogenated copolymer comprising a C.sub.2 to C.sub.12 monoolefin, e.g. isobutylene, and a ring-substituted alklstyrene, e.g., para-methylstyrene, and a compatibilizing agent such as zinc stearate.Type: GrantFiled: November 26, 1996Date of Patent: December 28, 1999Assignee: Exxon Chemical Patents, Inc.Inventors: Hsien-Chang Wang, Richard Cheng-Ming Yeh
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Patent number: 6005041Abstract: A novel, flexible composition is disclosed which contains reinforcement encased in intimate contact with a melt blended mixture of low durometer polymer gel. The reinforced polymer has unique properties obtained from the combination of reinforcement and elastomeric gel. Density, thermal conductivity, flexibility, elongation and strength are some of the properties which may be tailored by modifying the reinforcement and polymers. The combination of reinforcement with thermoplastic and oil create a gel and allows for deformation and impact resistance not obtainable with standard elastomers including vinyl, rubber or silicon. The addition of reinforcement makes it possible to tailor the gels properties while still maintaining many of its unique attributes. Particulate reinforced parts can be formed into a desired shape and take on some of the properties of the reinforcement. They can be deformed during use, but because these elastomeric gels have a high elastic memory, they return to their original shape.Type: GrantFiled: November 9, 1995Date of Patent: December 21, 1999Inventor: Arnold J. Cook
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Patent number: 5998523Abstract: Disclosed is a composition of an essentially solid phase state having as components, a liquid hydrophilic organic polymer, an aqueous salt solution containing at least one metallic or metalloid element, and a coagulating agent. The composition on calcination provides a metal-containing powder having an average particle size of 1 micrometer or less. Such metal-containing powders are of value in the preparation of industrial catalysts, ceramics, electronic components, or as fillers in plastics, paints or cosmetics.Type: GrantFiled: July 18, 1997Date of Patent: December 7, 1999Assignee: The Dow Chemical CompanyInventors: Henri J. M. Grunbauer, Jacobus A. Broos, Frederik R. van Buren
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Patent number: 5998506Abstract: The invention provides novel compositions and golf balls formed from those compositions. The compositions generally include a cured blend of an elastomer, a peroxide polymerization agent, a co-agent, and an unsaturated polycarboxylic acid. More particularly, the cured composition includes a cured blend of cis 1,4 polybutadiene, dicumyl peroxide, zinc diacrylate, and fumaric acid. One piece golf balls formed of these compositions have improved durability.Type: GrantFiled: September 12, 1997Date of Patent: December 7, 1999Assignee: Spalding Sports Worldwide, Inc.Inventor: Robert Dennis Nesbitt
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Patent number: 5990218Abstract: This invention relates to a polymeric composition having ultraviolet light and heat resistance that can be molded into rubbery articles that can be magnetized. For instance, the rubbery compositions of this invention can be molded into magnetic seals for refrigerator or freezer doors. In such applications, the magnetic composition acts as a combination airtight gasket and magnetic closure device for the refrigerator or freezer. These polymeric magnetic compositions offer the advantage of being thermoplastic materials rather than thermosets. By virtue of being thermoplastics, they can be injection-molded into the desired form without the need for a curing step. Thus, rubbery magnetic compositions can be manufactured by a simpler, less costly process by utilizing the compositions of this invention.Type: GrantFiled: November 20, 1998Date of Patent: November 23, 1999Assignee: The Goodyear Tire & Rubber CompanyInventors: Valerie Anne Hill, Michael Gozdiff
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Patent number: 5979529Abstract: An adherent rubber composition suitable for use in the adhesion to steel cords comprises given amounts of an inorganic salt hydrate and sulfur based on 100 parts by weight of rubber ingredient comprising not less than 10% by weight of at least one synthetic rubber and the remainder being natural rubber.Type: GrantFiled: October 30, 1998Date of Patent: November 9, 1999Assignee: Bridgestone CorporationInventors: Shinsuke Nakane, Kanji Fujiki
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Patent number: 5977235Abstract: The disclosure described a material having a damping property, comprising 100 parts by weight of a binder resin composed of 85 to 99% by weight of at least one base resin selected from the group consisting of polypropylenes, polystyrenes, acrylonitrile-butadiene-styrene copolymers, polycarbonates, polyphenylene ethers and modified polyphenylene ethers and 1 to 15% by weight of styrene-isoprene-styrene block copolymer, and 1 to 20 parts by weight of iron compound particles.Type: GrantFiled: May 13, 1997Date of Patent: November 2, 1999Assignee: Toda Kogyo CorporationInventors: Yasuhiko Fujii, Shigeru Takaragi, Tetsuro Toda, Tomohisa Moriya
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Patent number: 5969048Abstract: A colored coating composition comprising (a) 5 to 60% by weight of a polymer having a carboxyl group and a carboxylate group; (b) 5 to 60% by weight of a polymer having a hydroxyl group and an epoxy group; (c) 0.05 to 20% by weight of a pigment-dispersing agent; and (d) 0.1 to 50% by weight of a pigment; (wherein, each amount formulated of the components (a) to (d) is based on the weight of total solid in the colored coating composition), wherein, an acid total amount AR and a base total amount BR which are derived from said pigment-dispersing agent, and an acid total amount AP and a base total amount BP which are derived from said pigment, suffice the following relations: AR>0.5 BP or BR>0.5 AP, and AR+AP >BR. Thus provided is a solid color coating composition that can meet the requirements of mar resistance, acid resistance, storage stability, and excellent appearance.Type: GrantFiled: July 11, 1997Date of Patent: October 19, 1999Assignee: Nippon Paint Co., Ltd.Inventors: Etsuyuki Ito, Hideaki Tsujioka, Tsuyoshi Terada, Takayuki Fujita
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Patent number: 5958283Abstract: The invention relates to a thermoplastically processible molding material with a two-phase matrix of a partially aromatic copolyamide and an aliphatic polyamide or copolyamide containing permanently magnetic or magnetizable fillers, as well as to a method for producing this molding material and using it for producing molded parts.Type: GrantFiled: December 17, 1997Date of Patent: September 28, 1999Assignee: EMS-Inventa AGInventors: Eduard Schmid, Ivano Laudonia, David Jarvis, Etienne Aepli, Gion Antoni Tuor
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Patent number: 5955527Abstract: The present invention provides a wall for a package, which wall comprises, or includes a layer comprising, a composition comprising a polymer and capable of scavenging oxygen through the metal-catalyzed oxidation of an oxidizable organic component thereof. The oxidizable organic component is preferably itself a polymer, and may be the only polymer in the composition. Preferred compositions include a blend of 96% polyethylene terephthalate and 4% poly (m-xylyleneadipamide) containing 200 ppm cobalt as catalyst, with good permeance-versus-time performance (3) when formed into a bottle.Type: GrantFiled: April 18, 1997Date of Patent: September 21, 1999Assignee: CarnaudMetalbox plcInventors: Michael Alexander Cochran, Rickworth Folland, James William Nicholas, Melvin Edward Riddell Robinson
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Patent number: 5955528Abstract: Disclosed is a polymeric composite material in which metal sulfide microparticles having optical characteristics are uniformly dispersed and suspended in a high polymer material at high concentration. The polymeric composite material comprises metal sulfide microparticles formed by a reaction of a functional group in a matrix forming material having the functional group, the metal sulfide microparticles being dispersed in a matrix. It is desirable that the matrix includes a compound having the structure represented by formulae (1) to (5).Type: GrantFiled: July 1, 1997Date of Patent: September 21, 1999Assignee: Fuji Xerox Co., Ltd.Inventors: Katsuhiro Sato, Yoshiyuki Ono
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Patent number: 5948845Abstract: An organic solvent-based paint is provided which has, among other things, a perlitic component. The paint resists thermal loading and loss. A series addition of components provides the paint efficiently. The paint is useful for many substrates, including metals.Type: GrantFiled: February 2, 1998Date of Patent: September 7, 1999Assignee: P.S.A.M.S., Inc.Inventors: John W. Good, Rufus H. Kerry
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Patent number: 5942205Abstract: This invention aims to provide titanate whiskers which are excellent in heat resistance, chemical resistance and reinforcing effect and are low in coefficient of thermal conductivity.The titanate whiskers of the invention are those represented by the formulaA.sup.I.sub.v A.sup.II.sub.w M.sup.II.sub.x M.sup.III.sub.y Ti.sub.8-z O.sub.16wherein A.sup.I is at least one member selected from alkali metals, A.sup.II is Ba, M.sup.II is at least one member selected from the group consisting of Mg, Co, Ni, Zn, Cu and Mn, M.sup.III is at least one member selected from the group consisting of Al, Sc, Cr, Fe and Ga, and v, w, x, y and z are real numbers which fulfill 0.5.ltoreq.2x+y.ltoreq.2.5, 2x+y=v+2w, and z=x+y.Type: GrantFiled: February 10, 1997Date of Patent: August 24, 1999Assignees: Otsuka Kagaku Kabushiki Kaisha, Tomita Pharmaceutical Co., Ltd.Inventors: Hiroki Murata, Masayoshi Suzue, Akiyoshi Kawaguchi, Fauzi Faustinus, Toshihiro Kamewa, Tomohide Koizumi
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Patent number: 5925701Abstract: An aqueous dispersion comprising a dispersed polymer is disclosed, obtained by combining (i) the dispersed polymer (ii) a hydrated metal salt of a strong acid, and (iii) a polymeric surfactant comprising a hydrophobic component containing an aryl radical containing at least 7 carbon atoms and a hydrophilic block component containing at least six repeat units derived from water-soluble monomers, or a multifunctional block copolymeric surfactant derived from the sequential addition of propylene oxide or higher alkylene oxide units and subsequently ethylene oxide units to a polyamine moiety. It has been found that the addition of such polymeric surfactants in accordance with the invention can stabilize an aqueous polymeric dispersion or latex even when hydrated metal salts of strong acids, such as Al.sub.2 (SO.sub.4).sub.3.18H.sub.2 O, AlCl.sub.3.6H.sub.2 O, Al(NO.sub.3).sub.3.9H.sub.2 O, Zn(NO.sub.3).sub.2.6H.sub.2 O etc., are present.Type: GrantFiled: December 22, 1997Date of Patent: July 20, 1999Assignee: Eastman Kodak CompanyInventors: Teh-Ming Kung, Mary C. Brick, Michael W. Orem, Robin E. Osterhout, Terry C. Schultz
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Patent number: 5925455Abstract: A electromagnetic-power-absorbing composite, comprising a binder and a plurality of multilayered flakes dispersed in the binder. The multilayered flakes include at least one layer pair comprising one thin film crystalline ferromagnetic metal layer adjacent to one thin film dielectric layer. The multilayered flakes are preferably present in an amount in the range from about 0.1% to about 10% by volume of the composite. The composite is useful for absorbing electromagnetic power having a frequency in the range from 5 to 6000 MHz so as to produce heat.Type: GrantFiled: August 4, 1997Date of Patent: July 20, 1999Assignee: 3M Innovative Properties CompanyInventors: Charles L. Bruzzone, Charles D. Hoyle
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Patent number: 5916944Abstract: Disclosed is a method of forming tamper-proof coatings on electronic devices. The method comprises applying a coating of a silica precursor resin and a filler onto the electronic device, wherein the filler is one which reacts in an oxidizing atmosphere to liberate enough heat to damage the electronic device. The coated electronic device is then heated at a temperature sufficient to convert the silica precursor resin to a silica containing ceramic matrix.Type: GrantFiled: September 29, 1997Date of Patent: June 29, 1999Assignee: Dow Corning CorporationInventors: Robert Charles Camilletti, Loren Andrew Haluska, Keith Winton Michael
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Patent number: 5910525Abstract: A silicone rubber composition that cures into a highly flame-retardant silicone rubber with excellent electrical insulation characteristics and that does so without sacrificing mechanical strength. The silicone rubber composition comprises:(A) polyorganosiloxane described by average formula R.sub.a SiO.sub.(4-a)/, where R denotes substituted and unsubstituted monovalent hydrocarbon groups and a is a number from 1.95 to 2.05 and having at least 2 silicon-bonded alkenyl groups in each molecule;(B) microparticulate silica;(C) the reaction mixture of(a) a platinum compound and(b) a compound containing a carbon-carbon double bond and a carbon-carbon triple bond;(D) curing agent, and optionally(E) a triazole compound.Type: GrantFiled: July 17, 1997Date of Patent: June 8, 1999Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Takao Matsushita, Osamu Takuman
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Patent number: 5908676Abstract: An oxygen absorbing resin in which a deoxidizing composition is dispersed in a thermo-plastic resin mixture comprising (A) a thermoplastic elastomer and/or an ethylene propylene copolymer and (B) a thermo-plastic resin other than the above-mentioned (A), and having a flexural modulus of 600 MPa or less and an oxygen permeability of 130 cc.mm/m.sup.2.atm.day (23.degree. C., 50% RH) or more. The oxygen absorbing resin has an oxygen absorbing performance equal to that of a conventional deoxidizing agent in a small bag. A deoxidizing multi-layer structure which comprises a layer (I) comprising a thermoplastic resin layer having an oxygen permeability of 800 cc/m.sup.2.atm.day (23.degree. C., 50% RH) or more, a layer (II) comprising the oxygen absorbing resin, and a layer (III) having gas barrier properties. In addition, the deoxidizing multi-layer structure has a function of positively and efficiently absorbing oxygen.Type: GrantFiled: June 30, 1997Date of Patent: June 1, 1999Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Ryoji Otaki, Takashi Kashiba, Yoshiki Ito
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Patent number: 5907002Abstract: A dental impression silicone composition comprising: (A) 100 parts by weight of an organopolysiloxane having at least two aliphatic unsaturated hydrocarbons in one molecule; (B) from 0.1 to 30 parts by weight of an organohydrogen polysiloxane having at least three hydrogen atoms directly bonded to the silicon atom in one molecule; (C) from 10 to 500 ppm, based on the total amount of the components (A) and (B), of a silicone-soluble platinum compound; (D) from 10 to 500 parts by weight of an inorganic filler; (E) from 5 to 50 parts by weight of a fine silica powder having a BET specific surface area of from 50 to 500 m.sup.2 /g, whose surface is made hydrophobic; (F) from 0.Type: GrantFiled: June 20, 1997Date of Patent: May 25, 1999Assignee: GC CorporationInventors: Hiroshi Kamohara, Nobuyuki Hattori, Makiko Komoto
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Patent number: 5895794Abstract: A crosslinked polysiloxane dispersion comprising a siloxane polymer, polymer mixture, or polymer/solvent mixture, capable of crosslinking via condensation, addition or free radical reactions, and having a viscosity of greater than 5000 mPa.s but less than 500,000 mPa.s, if required, 0.1 to 10 weight parts of a crosslinking agent, and, if required, depending on the nature of the catalyst and silicon cure system, 0.000001 to 10 weight parts of a catalyst, 0.5 to 10 weight parts of a surfactant or surfactant mixture, and 0.5 to 25 weight parts water per 100 weight parts siloxane polymer. Optionally, adhesion promoters, pigments, reinforcing or non-reinforcing fillers, silicone resins, stabilizers, freeze/thaw additives, etc. may also be added to the dispersion.Type: GrantFiled: April 27, 1995Date of Patent: April 20, 1999Assignee: Dow Corning CorporationInventors: Daniel Trent Berg, Donald Taylor Liles, Leon Andre Marteaux, Nick Evan Shephard, Andreas Thomas Franz Wolf, Eric Jude Joffre
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Patent number: 5891946Abstract: A resin mixture including a composition containing polypropylene that includes a portion insoluble in xylene, an isotactic pentad fraction of not less than 96.5% and an isotactic average chain length of not less than 90, 45.about.70 parts by weight; a polyolefin resin, 5.about.20 parts by weight; an inorganic filler selected from precipitated calcium carbonate, hydrated silicic acid, and hydrated calcium silicate, 5.about.30 parts by weight; and an inorganic filler selected from talc, mica, and potassium titanate, 5.about.30 parts by weight; is superior in scratch resistance, moldability, and balance of rigidity and impact resistance. In addition, a laminate having a layer of this mixture has superior gloss. This mixture and the laminate are useful in automobile parts, electric and electronic parts, packaging materials, etc.Type: GrantFiled: October 19, 1995Date of Patent: April 6, 1999Assignee: Showa Denko K.K.Inventors: Yasuhiro Nohara, Kazuyuki Watanabe
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Patent number: 5889093Abstract: The present invention provides an oxygen-absorbing resin composition, which is capable of sufficiently causing the oxygen-absorbing reaction even in a low-water environment, and also provides a packing material, packing method and package using such oxygen-absorbing resin composition.This invention is an oxygen-absorbing resin composition which contains a resin and an oxygen absorber which is made by coating iron powder with sodium iodide and potassium iodide. In a multi-layered film formed from this resin composition, iron particles coated with sodium iodide, etc. is dispersed in an oxygen-absorbing resin layer 4. Since a reaction accelerator of the oxygen absorber contains sodium iodide and potassium iodide as its principal component, this multi-layered film sufficiently absorbs oxygen in a low-water environment.Type: GrantFiled: February 3, 1997Date of Patent: March 30, 1999Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Hidetoshi Hatakeyama, Haruaki Eto
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Patent number: 5886077Abstract: A rare earth-iron-nitrogen based magnetic material has superior magnetic properties. A method of manufacturing the rare earth-iron-nitrogen based magnetic material controls the decline in the magnetic properties of the material during pulverizing processes, and pulverizes the material to a critical particle dimension for single-domain behavior. The fragility of the material is increased since the material includes at least one element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W at 0.05-5% atomic percentage. The material is pulverized by a gas current type jet mill. Sample powder injected from a hopper is introduced from a supply mouth to a pulverizing chamber by nitrogen gas spouting from a pressure nozzle, and the powder is then accelerated to acoustic velocity by high pressure nitrogen gas spouting from gliding nozzles. As a result, the powder particles collide with each other.Type: GrantFiled: July 23, 1997Date of Patent: March 23, 1999Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Takeshi Takahashi, Kiyoshi Kojima